1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4874183fdcaeaba37ca5e9b0660b189385982ec387a413d5fcaec06c811487f4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f1d0272-3b36-4f85-b5ba-86962b37bf09.json and https://artists.proofprofile.net/proofs/artist/7f1d0272-3b36-4f85-b5ba-86962b37bf09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04238fdbe246f0d5aee5678b8c037225228288683a74e8367179dfc34ffa170. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c06765fd7f3f920b95e937074ee2b17e8587c9f05b3f7d3510406086a935f57. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9056c006dc16f79eb5ea95dd95891122bd1ec322d2e2ee88ec32451a536ac4ad. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff794694182cdc477abe10f966550981f2cb58880378c609e624b742504e8169. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572fe8cb2ea8d6d578e8e62781c2220f7c63756f4b5d0367caf8d94d81d72e1. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ed4905ee4d3b412b8d5da977bb7bd110d6cff4b490c66c9355a9f3c27b259a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:29:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c163d26c38e3f2531936d0459224e009ccc5e5574fdc5d747d969d92f30d1e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:31:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d864c153aa215aab6bc3c9e6b804d81cf7ffbe19b62fa9b26497ca3ce001e1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22340125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a349ac1a0c8ac3df844abc1b132a91b7380663fbc1fabefed570477cfedcc8b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:46:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335491.
Cariño, estoy bailando contigo esta noche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3430f3777a9787deef0839500dc96be3aa1b5d3c5098874837c7cc10acac4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7352aaf150d089b91cf70b5751a22afd903dfe713a4a6a5ee2e802a03cc2ac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf99f2282ea1cbec6e402024132403b59a61b5cadd41a598d80cc3871f3446a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3293823acbd3b347d92a3d1d83b4bd0e84cc6a5d06f85fbde6761c57d9e69363. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a827ff5b0eb9125c87ae6598e9e128c747b23aa1df0a8bfd6b4186ce61af37f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22335496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9067cb00a15346b97024b72daf836959bb671bb0a60b7ee3c27fd629a5615683. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d5334ea22771b36582d391e78fad26d4f21c7b61753e4a8f33c3256f7214f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ecf546b67e7d727ca79ff4b430e58c15c39dd5ee631a970718ecce966d3745. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ad59bb4056d4c69212776ad459fc880e64bed2518d228308a022d3772a62e6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fcb0d385d87894da55db946bca18459d6efcf3325f18f024a5b19d1b13207f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c60b4185efb790b8bdcc9a70b4f8e55babc067bb045ac17fa763c48ecdd1e6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b46202aa6cf08ba7d0a55cc603a78c813225bdd29f5f239baeae3269510c0a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb18798942a46a0450288ef4afad006bf69d18a2e7ab21e52bf2c7f7a55757e9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aa2eeac1b766309117053cd9e040b07597314336ae6f6cea80a5898c5672c5. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc883e1d76566be0ff5888dca3a5cf98c180ea4903e8b4af7183a0e76495688e8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d52324d42d5b76db77d140728253c66a0a679b42e0ed9c49691ef908d42a2b1. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5ed595681d3638c414eaa4a4318608c1a02b7eadfb5f715e33ef16a10a5880. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cc33dc38f8f3c4744ef589575559cead359a4895d2b7357d4f68e9c3c31af1. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb19bfe9e46bd69c516f11d1d2f493003198369bfd294afa47e83f2e453c249. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6354c314ddd0c60bcbfcec5a19455b406d76a07d4b7808e982f5eaab92a0ba. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ea62864cf265a7051a46deba760f125fd0a68249d08d799ca40f2fec19099. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497bb24dc88930cb7225ba68f5dda80d00b2020459f1aa740e3466bf4fb4cef0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc688b3c6ec3942845400b3487abbdf6ac3073134ef740dd2d93fc697f967908. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf771de8352dda3eef1f49589ee63f6f0a9893326fc21a087427d2fd870588214. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79d24a110a6ddaa1c59cc25409bd547de21ebbb2c8cc9c61c89912f05d5f1aa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2371632.